#pragma once

#include "Socket.hpp"

using namespace SocketModule;
using ioservice_t = std::function<void(std::shared_ptr<Socket> &, InetAddr &)>;

class TcpServer
{
public:
    TcpServer(uint16_t port, ioservice_t service)
        : _port(port),
          _listensockptr(std::make_unique<TcpSocket>()),
          _isrunning(false),
          _service(service)
    {
        _listensockptr->BuildTcpSocketMethod(_port);
    }

    void Start()
    {
        _isrunning = true;
        while(_isrunning)
        {
            InetAddr client;
            auto sock = _listensockptr->Accept(&client);
            if (sock == nullptr)
                continue;

            pid_t id = fork();
            if (id < 0)
            {
                LOG(LogLevel::FATAL) << "fork error";
                exit(FORK_ERR);
            }
            else if (id == 0)
            {
                // 子进程
                _listensockptr->Close();
                if (fork() > 0)
                    exit(OK);

                // 孙子进程 -- 提供服务
                _service(sock, client);
                exit(OK);
            }
            else
            {
                // 父进程
                sock->Close();
                pid_t rid = ::waitpid(id, nullptr, 0);
                (void)rid;
            }
        }
        _isrunning = false;
    }

    ~TcpServer() {}

private:
    uint16_t _port;
    std::unique_ptr<Socket> _listensockptr;
    bool _isrunning;
    ioservice_t _service;
};